Vol. 12, Issue 3 (2023)

Author(s):
Ashita V Patel, Nitin B Patel, Pranay C Patel, Kapil K Tiwari, Jagruti S Mahla and Sarojini Roul

Abstract:
A study was conducted to assess the genetic variability, interrelationship among yield components and their direct and indirect effect on yield. Thirty genotypes of Linseed (Linum usitatissimum L.) were evaluated in Randomized Block Design with three replications during 2020-21 for twelve morphological characters to assess the genetic parameters of variability. The influence of environment on the manifestation of features was shown by larger phenotypic coefficient values than matching genotypic coefficient values. The highest GCV and PCV values were for leaf area per plant (LAP) and seed yield per plant (SYP). For the chlorophyll content index (CCI), oil content (OC), days to 50% flowering (DF), and 1000 seed weight (SW), higher magnitudes of heritability together with high to moderate genetic advance as a percentage of mean were observed. Number of capsules per plant (NCP), number of seeds per capsule (NSC), and 1000 Seed weight (SW) all demonstrated positive, statistically significant correlations with seed yield per plant. Path coefficient analysis revealed that number of capsules per plant has strong positive direct effect on seed yield per plant. Cluster analysis clearly differentiated 30 genotypes into five clusters with cluster I having 16 genotypes. Cluster IV and III had the greatest inter-cluster distance (26.00), followed by cluster III and II (25.91). Chlorophyll content index contributed the most to genetic difference among the twelve parameters examined (55.17%), followed by oil content (14.25%). The results attained could be applied to future breeding programmes.